VISCOELASTIC SURFACTANT FORMULATIONS AND USE IN SUBTERRANEAN FORMATIONS

VISCOELASTIC SURFACTANT FORMULATIONS AND USE IN SUBTERRANEAN FORMATIONS

A viscoelastic surfactant formulation may include a zwitterionic surfactant with a general formula (I):where A is a C or SO, E1 is a linear or branched, saturated or unsaturated hydrocarbon chain having 1 to 4 carbon atoms, R1 and R2 are selected from alkyl groups of from 1 to about 4 carbon atoms,...

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Bibliographische Detailangaben
Hauptverfasser: Rabie, Ahmed I, Qu, Qi, Ndong, Rose, Zhou, Jian, Cadix, Arnaud, Herve, Pascal
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Beschreibung
Zusammenfassung:A viscoelastic surfactant formulation may include a zwitterionic surfactant with a general formula (I):where A is a C or SO, E1 is a linear or branched, saturated or unsaturated hydrocarbon chain having 1 to 4 carbon atoms, R1 and R2 are selected from alkyl groups of from 1 to about 4 carbon atoms, and R3 is a linear or branched, saturated or unsaturated alkyl chain having less than 22 carbon atoms or is -(CH2)n NHC(O)-R4, where R4 is a linear or branched, saturated or unsaturated alkyl chain having less than 22 carbon atoms and n ranges from 1 to 6; a synergistic co-surfactant containing a primary, secondary, or tertiary amine; amido group; amine oxide; or combinations thereof; and at least one miscible solvent.